Method walk

src/knowledge/loader.js:85–96

(sub)

    const entries = [];
    const walk = (sub) => {
      let listing;
      try { listing = fs.readdirSync(sub, { withFileTypes: true }); }
      catch { return; }
      for (const ent of listing) {
        const full = path.join(sub, ent.name);
        if (ent.isDirectory()) walk(full);
        else if (ent.isFile() && /\.(md|txt)$/i.test(ent.name)) {
          entries.push(this._parseEntry(full, dir));
        }
      }
    };
    walk(dir);
    this._index = entries.filter(Boolean);
    return this._index;